MAP2K1
Encyclopedia
Dual specificity mitogen-activated protein kinase kinase 1 is an enzyme
Enzyme
Enzymes are proteins that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates...

 that in humans is encoded by the MAP2K1 gene
Gene
A gene is a molecular unit of heredity of a living organism. It is a name given to some stretches of DNA and RNA that code for a type of protein or for an RNA chain that has a function in the organism. Living beings depend on genes, as they specify all proteins and functional RNA chains...

.

Function

The protein encoded by this gene is a member of the dual specificity protein kinase family, which acts as a mitogen-activated protein (MAP) kinase kinase. MAP kinases, also known as extracellular signal-regulated kinases
Extracellular signal-regulated kinases
In molecular biology, extracellular-signal-regulated kinases or classical MAP kinases are widely expressed protein kinase intracellular signalling molecules that are involved in functions including the regulation of meiosis, mitosis, and postmitotic functions in differentiated cells...

 (ERKs), act as an integration point for multiple biochemical signals. This protein kinase
Kinase
In chemistry and biochemistry, a kinase is a type of enzyme that transfers phosphate groups from high-energy donor molecules, such as ATP, to specific substrates, a process referred to as phosphorylation. Kinases are part of the larger family of phosphotransferases...

 lies upstream of MAP kinases and stimulates the enzymatic activity of MAP kinases upon activation by a wide variety of extra- and intracellular signals. As an essential component of the MAP kinase signal transduction pathway
MAPK/ERK pathway
The MAPK/ERK pathway is a chain of proteins in the cell that communicates a signal from a receptor on the surface of the cell to the DNA in the nucleus of the cell. The signal starts when a growth factor binds to the receptor on the cell surface and ends when the DNA in the nucleus expresses a...

, this kinase is involved in many cellular processes such as proliferation
Cell growth
The term cell growth is used in the contexts of cell development and cell division . When used in the context of cell division, it refers to growth of cell populations, where one cell grows and divides to produce two "daughter cells"...

, differentiation
Cellular differentiation
In developmental biology, cellular differentiation is the process by which a less specialized cell becomes a more specialized cell type. Differentiation occurs numerous times during the development of a multicellular organism as the organism changes from a simple zygote to a complex system of...

, transcription regulation and development.

Interactions

MAP2K1 has been shown to interact
Protein-protein interaction
Protein–protein interactions occur when two or more proteins bind together, often to carry out their biological function. Many of the most important molecular processes in the cell such as DNA replication are carried out by large molecular machines that are built from a large number of protein...

 with C-Raf
C-Raf
RAF proto-oncogene serine/threonine-protein kinase also known as proto-oncogene c-RAF or simply c-Raf is an enzyme that in humans is encoded by the RAF1 gene. The c-Raf protein functions in the MAPK/ERK signal transduction pathway as part of a protein kinase cascade...

, Phosphatidylethanolamine binding protein 1
Phosphatidylethanolamine binding protein 1
Phosphatidylethanolamine-binding protein 1 is a protein that in humans is encoded by the PEBP1 gene.-Interactions:Phosphatidylethanolamine binding protein 1 has been shown to interact with MAP2K1, C-Raf and MAPK1.-Further reading:...

, MAP2K1IP1
MAP2K1IP1
Mitogen-activated protein kinase scaffold protein 1 is a scaffold protein that in humans is encoded by the MAPKSP1 gene.-Interactions:MAP2K1IP1 has been shown to interact with MAP2K1.-Further reading:...

, GRB10
GRB10
Growth factor receptor-bound protein 10 also known as insulin receptor-binding protein Grb-IR is a protein that in humans is encoded by the GRB10 gene.- Function :...

, MAPK3
MAPK3
Mitogen-activated protein kinase 3 is an enzyme that in humans is encoded by the MAPK3 gene.-Interactions:MAPK3 has been shown to interact with PTPN7, SPIB, GTF2I, DUSP3, HDAC4, RPS6KA2, MAP2K1, DUSP6 and MAP2K2.-Further reading:...

, MAPK8IP3
MAPK8IP3
C-jun-amino-terminal kinase-interacting protein 3 is an enzyme that in humans is encoded by the MAPK8IP3 gene.-Interactions:MAPK8IP3 has been shown to interact with ASK1, C-Raf, PTK2, MAPK10, Mitogen-activated protein kinase 9, MAPK8, MAP2K1, KLC2, MAP2K7, KLC1, MAPK8IP2 and MAP2K4.-Further reading:...

, MAPK1
MAPK1
Mitogen-activated protein kinase 1, also known as MAPK1, p42MAPK, and ERK2, is an enzyme that in humans is encoded by the MAPK1 gene.- Function :The protein encoded by this gene is a member of the MAP kinase family...

 MP1, and MAP3K1
MAP3K1
Mitogen-activated protein kinase kinase kinase 1 is an enzyme that in humans is encoded by the MAP3K1 gene.Mouse genetics has revealed that the kinase is important in: correct embryogenesis, keratinocyte migration, T cell cytokine production and B cell antibody production.-Interactions:MAP3K1 has...

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External links

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